blob: 3bb8879ac8a2f1f2477e666659b4816ad7af8fc9 [file] [log] [blame]
/*
* linux/sound/soc/pxa/palm27x.c
*
* SoC Audio driver for Palm T|X, T5 and LifeDrive
*
* based on tosa.c
*
* Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/device.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <asm/mach-types.h>
#include <mach/audio.h>
#include <mach/palmasoc.h>
#include "../codecs/wm9712.h"
#include "pxa2xx-pcm.h"
#include "pxa2xx-ac97.h"
static int palm27x_jack_func = 1;
static int palm27x_spk_func = 1;
static int palm27x_ep_gpio = -1;
static void palm27x_ext_control(struct snd_soc_codec *codec)
{
if (!palm27x_spk_func)
snd_soc_dapm_enable_pin(codec, "Speaker");
else
snd_soc_dapm_disable_pin(codec, "Speaker");
if (!palm27x_jack_func)
snd_soc_dapm_enable_pin(codec, "Headphone Jack");
else
snd_soc_dapm_disable_pin(codec, "Headphone Jack");
snd_soc_dapm_sync(codec);
}
static int palm27x_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->socdev->codec;
/* check the jack status at stream startup */
palm27x_ext_control(codec);
return 0;
}
static struct snd_soc_ops palm27x_ops = {
.startup = palm27x_startup,
};
static irqreturn_t palm27x_interrupt(int irq, void *v)
{
palm27x_spk_func = gpio_get_value(palm27x_ep_gpio);
palm27x_jack_func = !palm27x_spk_func;
return IRQ_HANDLED;
}
static int palm27x_get_jack(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = palm27x_jack_func;
return 0;
}
static int palm27x_set_jack(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
if (palm27x_jack_func == ucontrol->value.integer.value[0])
return 0;
palm27x_jack_func = ucontrol->value.integer.value[0];
palm27x_ext_control(codec);
return 1;
}
static int palm27x_get_spk(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = palm27x_spk_func;
return 0;
}
static int palm27x_set_spk(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
if (palm27x_spk_func == ucontrol->value.integer.value[0])
return 0;
palm27x_spk_func = ucontrol->value.integer.value[0];
palm27x_ext_control(codec);
return 1;
}
/* PalmTX machine dapm widgets */
static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_SPK("Speaker", NULL),
};
/* PalmTX audio map */
static const struct snd_soc_dapm_route audio_map[] = {
/* headphone connected to HPOUTL, HPOUTR */
{"Headphone Jack", NULL, "HPOUTL"},
{"Headphone Jack", NULL, "HPOUTR"},
/* ext speaker connected to ROUT2, LOUT2 */
{"Speaker", NULL, "LOUT2"},
{"Speaker", NULL, "ROUT2"},
};
static const char *jack_function[] = {"Headphone", "Off"};
static const char *spk_function[] = {"On", "Off"};
static const struct soc_enum palm27x_enum[] = {
SOC_ENUM_SINGLE_EXT(2, jack_function),
SOC_ENUM_SINGLE_EXT(2, spk_function),
};
static const struct snd_kcontrol_new palm27x_controls[] = {
SOC_ENUM_EXT("Jack Function", palm27x_enum[0], palm27x_get_jack,
palm27x_set_jack),
SOC_ENUM_EXT("Speaker Function", palm27x_enum[1], palm27x_get_spk,
palm27x_set_spk),
};
static int palm27x_ac97_init(struct snd_soc_codec *codec)
{
int i, err;
snd_soc_dapm_nc_pin(codec, "OUT3");
snd_soc_dapm_nc_pin(codec, "MONOOUT");
/* add palm27x specific controls */
for (i = 0; i < ARRAY_SIZE(palm27x_controls); i++) {
err = snd_ctl_add(codec->card,
snd_soc_cnew(&palm27x_controls[i],
codec, NULL));
if (err < 0)
return err;
}
/* add palm27x specific widgets */
snd_soc_dapm_new_controls(codec, palm27x_dapm_widgets,
ARRAY_SIZE(palm27x_dapm_widgets));
/* set up palm27x specific audio path audio_map */
snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
snd_soc_dapm_sync(codec);
return 0;
}
static struct snd_soc_dai_link palm27x_dai[] = {
{
.name = "AC97 HiFi",
.stream_name = "AC97 HiFi",
.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
.codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
.init = palm27x_ac97_init,
.ops = &palm27x_ops,
},
{
.name = "AC97 Aux",
.stream_name = "AC97 Aux",
.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
.codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
.ops = &palm27x_ops,
},
};
static struct snd_soc_card palm27x_asoc = {
.name = "Palm/PXA27x",
.dai_link = palm27x_dai,
.num_links = ARRAY_SIZE(palm27x_dai),
};
static struct snd_soc_device palm27x_snd_devdata = {
.card = &palm27x_asoc,
.platform = &pxa2xx_soc_platform,
.codec_dev = &soc_codec_dev_wm9712,
};
static struct platform_device *palm27x_snd_device;
static int __init palm27x_asoc_init(void)
{
int ret;
if (!(machine_is_palmtx() || machine_is_palmt5() ||
machine_is_palmld()))
return -ENODEV;
ret = gpio_request(palm27x_ep_gpio, "Headphone Jack");
if (ret)
return ret;
ret = gpio_direction_input(palm27x_ep_gpio);
if (ret)
goto err_alloc;
if (request_irq(gpio_to_irq(palm27x_ep_gpio), palm27x_interrupt,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"Headphone jack", NULL))
goto err_alloc;
palm27x_snd_device = platform_device_alloc("soc-audio", -1);
if (!palm27x_snd_device) {
ret = -ENOMEM;
goto err_dev;
}
platform_set_drvdata(palm27x_snd_device, &palm27x_snd_devdata);
palm27x_snd_devdata.dev = &palm27x_snd_device->dev;
ret = platform_device_add(palm27x_snd_device);
if (ret != 0)
goto put_device;
return 0;
put_device:
platform_device_put(palm27x_snd_device);
err_dev:
free_irq(gpio_to_irq(palm27x_ep_gpio), NULL);
err_alloc:
gpio_free(palm27x_ep_gpio);
return ret;
}
static void __exit palm27x_asoc_exit(void)
{
free_irq(gpio_to_irq(palm27x_ep_gpio), NULL);
gpio_free(palm27x_ep_gpio);
platform_device_unregister(palm27x_snd_device);
}
void __init palm27x_asoc_set_pdata(struct palm27x_asoc_info *data)
{
palm27x_ep_gpio = data->jack_gpio;
}
module_init(palm27x_asoc_init);
module_exit(palm27x_asoc_exit);
/* Module information */
MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
MODULE_LICENSE("GPL");